Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Hydrocolloid core dressing and preparation method thereof, hydrocolloid dressing and application thereof

A hydrocolloid and hydrophilic colloid technology, applied in dressings, viscous dressings, non-adhesive dressings, etc., can solve the problems of decreased skin fit performance, slow liquid absorption rate, large liquid absorption of dressings, etc. Flexibility, adjustable suction rate, fast suction effect

Active Publication Date: 2021-07-30
HENAN HUIBO MEDICAL CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The agglomeration will make some areas of the dressing have strong water absorption capacity, and some areas have poor water absorption, and the adhesion between the poor water absorption area and the skin will decrease, causing the dressing to fall off, and the dispersed phase will be dispersed unevenly, resulting in rubber phase defects. , the area with more dispersed phase has lower strength and elasticity, and the area with less dispersed phase has higher strength and elasticity. When the dressing moves with the skin, the area with more dispersed phase is prone to cracks, causing the dressing to wrinkle or even break
In addition, some other problems in hydrocolloid dressings cannot be ignored, such as poor elasticity and flexibility of the dressing, which is easy to slip off as the skin moves; the bonding time of the dressing is short, the frequency of replacement is too high or the viscosity is too strong, causing patients Detachment pain or detachment injury; at the same time, there are problems such as poor dressing wettability, slow liquid absorption rate, difficult to control water absorption rate, large dressing absorption volume, poor integrity, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrocolloid core dressing and preparation method thereof, hydrocolloid dressing and application thereof
  • Hydrocolloid core dressing and preparation method thereof, hydrocolloid dressing and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0084] The preparation method of above-mentioned hydrocolloid coating core, comprises the following steps:

[0085] The thermoplastic rubber, the plasticizer, the tackifying resin, the reinforcing agent, the antioxidant, the hydrophilic colloid and the wetting-promoting absorbent are uniformly mixed according to the ratio to obtain the hydrocolloid coating core. The preparation method of the hydrocolloid dressing has simple operation and high controllability.

[0086] The preparation method of hydrocolloid core as above, described method comprises the following steps:

[0087] (a) adding thermoplastic rubber, plasticizer, tackifying resin, reinforcing agent and antioxidant in the kneader, mixing evenly;

[0088] (b) adding a hydrophilic colloid and a wetting-promoting absorbent to the homogeneous mixture in step (a), stirring to obtain a hydrocolloid core coating;

[0089] Preferably, the mixing temperature in the step (a) is 80-130°C, the mixing time is 55-65min, and the kn...

Embodiment 1

[0108] A hydrocolloid coating core is mainly made of the following raw materials in parts by weight:

[0109] 25 parts of hydrophilic colloid, 10 parts of wet-absorbing agent, 1 part of thermoplastic rubber, 30 parts of plasticizer, 4 parts of tackifying resin, 13 parts of reinforcing agent and 0.008 part of antioxidant.

Embodiment 2

[0111] A hydrocolloid coating core is mainly made of the following raw materials in parts by weight:

[0112] 50 parts of hydrophilic colloid, 0.5 parts of wet-absorbing agent, 20 parts of thermoplastic rubber, 8 parts of plasticizer, 30 parts of tackifying resin, 1.5 parts of reinforcing agent and 4 parts of antioxidant.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of medical dressings, and in particular relates to a hydrocolloid dressing core and a preparation method thereof, a hydrocolloid dressing and applications thereof. The hydrocolloid core coating in the present invention is mainly made of the following raw materials in parts by weight: 25-50 parts of hydrophilic colloid, 0.5-10 parts of wetting-promoting absorbent, 1-20 parts of thermoplastic rubber, and 8-30 parts of plasticizer 4-30 parts of tackifying resin, 1.5-13 parts of reinforcing agent and 0.008-4 parts of antioxidant. The hydrocolloid dressing prepared by the hydrocolloid dressing core has good integrity, up to 90%, and a large liquid absorption capacity of 0.2-0.3g / cm 2 , fast liquid absorption rate, the liquid absorption rate is 3-4.5h, and the liquid absorption rate is adjustable, it is not easy to produce wrinkles, breaks, no white spots, good stickiness, and no pain when peeling off.

Description

technical field [0001] The invention relates to the technical field of medical dressings, in particular to a hydrocolloid dressing core and a preparation method thereof, a hydrocolloid dressing and applications thereof. Background technique [0002] Human skin will cause trauma due to various external factors, thereby losing its natural protective function and causing other complications. Traditional gauze dressings are mainly made of cotton and hemp raw materials through deep processing. Causes secondary mechanical damage during drug use. In addition, traditional dressings are not antibacterial, and the wound surface is susceptible to bacterial infection, producing unpleasant odors and causing wound complications, which is not conducive to wound healing. With the advancement of modern technology, new types of medical dressings continue to emerge, and new clinical efficacy is also constantly improving. [0003] As a new functional dressing, hydrocolloid dressing can not o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/02
CPCA61F13/00008A61F13/0213A61F13/0253A61F13/0289
Inventor 曹晶晶周新钦杨帅袁召王川
Owner HENAN HUIBO MEDICAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products